The Best Cyprus Community

Skip to content


Thorium, its practical use as a source of energy

Feel free to talk about anything that you want.

Re: Thorium, its practical use as a source of energy

Postby GreekIslandGirl » Wed Jun 01, 2016 3:34 pm

I too think solar, in one form or other (think beyond PV cells), is the most practical source of energy.

Very soon, we will have more efficient plant-like photo-receptors - and, if we can just tweak that darn RuBisCo .... wow, endless fixed Carbon!
User avatar
GreekIslandGirl
Main Contributor
Main Contributor
 
Posts: 8962
Joined: Sat Oct 15, 2011 1:03 am

Re: Thorium, its practical use as a source of energy

Postby erolz66 » Wed Jun 01, 2016 3:57 pm

If the application is sending out probes or landing craft to planets further from the sun than earth and beyond then solar is increasingly non viable and exponentially so, as you get further from the sun.
erolz66
Regular Contributor
Regular Contributor
 
Posts: 1888
Joined: Sat Nov 30, 2013 8:31 pm

Re: Thorium, its practical use as a source of energy

Postby supporttheunderdog » Wed Jun 01, 2016 4:16 pm

erolz66 wrote:If the application is sending out probes or landing craft to planets further from the sun than earth and beyond then solar is increasingly non viable and exponentially so, as you get further from the sun.


I would agree with that, but I think this is about less esoteric uses.
User avatar
supporttheunderdog
Main Contributor
Main Contributor
 
Posts: 8201
Joined: Thu Oct 28, 2010 3:03 pm
Location: limassol

Re: Thorium, its practical use as a source of energy

Postby GreekIslandGirl » Wed Jun 01, 2016 4:51 pm

Solar energy for space travel:

This, in combination with more blue sky technology ....

The solar energy available in space is literally billions of times greater than we use today. The lifetime of the sun is an estimated 4-5 billion years, making space solar power a truly long-term energy solution. As Earth receives only one part in 2.3 billion of the Sun's output, space solar power is by far the largest potential energy source available, dwarfing all others combined. Solar energy is routinely used on nearly all spacecraft today.


At the moment, they are only addressing earth's energy needs but ...


In the longer term, with sufficient investments in space infrastructure, space solar power can be built from materials from space. The full environmental benefits of space solar power derive from doing most of the work outside of Earth's biosphere. With materials extraction from the Moon or near-Earth asteroids, and space-based manufacture of components, space solar power would have essentially zero terrestrial environmental impact. Only the energy receivers need be built on Earth.


http://www.nss.org/settlement/ssp/
User avatar
GreekIslandGirl
Main Contributor
Main Contributor
 
Posts: 8962
Joined: Sat Oct 15, 2011 1:03 am

Re: Thorium, its practical use as a source of energy

Postby erolz66 » Wed Jun 01, 2016 4:55 pm

Powering the earth from solar arrays in place around the earth is not the same problem as trying to power space craft / probes (or even settlements) at distances from the sun greater than those the earth is at. You could try watching the video link that was the source for this thread and this discussion.

http://www.youtube.com/watch?v=0BybPPIM ... u.be&t=475
erolz66
Regular Contributor
Regular Contributor
 
Posts: 1888
Joined: Sat Nov 30, 2013 8:31 pm

Re: Thorium, its practical use as a source of energy

Postby GreekIslandGirl » Wed Jun 01, 2016 5:50 pm

I never said it was the *same* - but that's all they have to do first.

Then, we can use solar to power near-planets/satellites (Mars/moon) travel.We don't have the capacity to travel very far anyway for other reasons not just power sources. Beyond that - and by the time we have achieved all that - there will be other new possibilities.
User avatar
GreekIslandGirl
Main Contributor
Main Contributor
 
Posts: 8962
Joined: Sat Oct 15, 2011 1:03 am

Re: Thorium, its practical use as a source of energy

Postby erolz66 » Wed Jun 01, 2016 6:17 pm

We have already sent missions out beyond mars - Voyager, Pioneer, Galileo, Cassini-Huygens, and New Horizons to name just a few. These mission are only possible because they used plutonium-238 based nuclear power supplies. However we have in essence run out of plutonium-238 http://www.wired.com/2013/09/plutonium-238-problem/. If we wish to keep on exploring the outer reaches of our solar system and beyond we need alternate power sources and solar is never going to be that source. Liquid salt thorium reactors might be.
erolz66
Regular Contributor
Regular Contributor
 
Posts: 1888
Joined: Sat Nov 30, 2013 8:31 pm

Re: Thorium, its practical use as a source of energy

Postby GreekIslandGirl » Wed Jun 01, 2016 7:16 pm

:lol:

*Never*

:lol:
User avatar
GreekIslandGirl
Main Contributor
Main Contributor
 
Posts: 8962
Joined: Sat Oct 15, 2011 1:03 am

Previous

Return to General Chat

Who is online

Users browsing this forum: No registered users and 0 guests